Hong Sung-heon underwent a scalp Tattoo procedure. The story of Hong Sung-heon, who is worried about Hair loss, was portrayed in Season 2 of KBS 2TV, which was broadcast on November 26th. Hong Sung-heon, who had severe Hair loss stress, went to the hospital and consulted a doctor. The doctor said, "It is progressing, but it is not enough to recommend hair transplantation. However, if left untreated, M-Hair loss will be tee, "he said." I recommend using scalp Tattoo while using Hair loss medicine. " Hong Sung-heon said, "I'll do a scalp Tattoo right away, but as the people of Hair loss know, every day is different. I decided to get the procedure because there's a lot of stress and there's no time to lose."